Finding document topics for improving topic segmentation

Topic segmentation and identification are often tackled as separate problems whereas they are both part of topic analysis. In this article, we study how topic identification can help to improve a topic segmenter based on word reiteration. We first present an unsupervised method for discovering the topics of a text. Then, we detail how these topics are used by segmentation for finding topical similarities between text segments. Finally, we show through the results of an evaluation done both for French and English the interest of the method we propose.

• Type: Conference
• Year: 2007
• Where: ACL
• Authors: Olivier Ferret
• Keywords: ACL 2007, Computational Linguistics, Topic Analysis, Topic Identification, Topic Segmentation